Bollington, R., Hopkins, D., & West, M. (1990). An introduction to teacher appraisal: A professional development approach. Cassell.
Cita Chicago (17th ed.)Bollington, Rob, David Hopkins, i Mel West. An Introduction to Teacher Appraisal: A Professional Development Approach. London: Cassell, 1990.
Cita MLA (8th ed.)Bollington, Rob, et al. An Introduction to Teacher Appraisal: A Professional Development Approach. Cassell, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.